Bring on the asteroid
(So people joke about this now.....)
CAPE CANAVERAL, Fla. (AP) — The good news is that scientists have a better handle on asteroid Bennu’s whereabouts for the next 200 years. The bad news is that the space rock has a slightly greater chance of clobbering Earth than previously thought.
But don’t be alarmed: Scientists reported Wednesday that the odds are still quite low that Bennu will hit us in the next century.
“We shouldn’t be worried about it too much,” said Davide Farnocchia, a scientist with NASA’s Center for Near Earth Object Studies at the Jet Propulsion Laboratory in Pasadena, California, who served as the study’s lead author.
While the odds of a strike have risen from 1-in-2,700 to 1-in-1,750 over the next century or two, scientists now have a much better idea of Bennu’s path thanks to NASA’s Osiris-Rex spacecraft, according to Farnocchia. apnews.com/...
“So I think that overall, the situation has improved,” he told reporters.
Scientists say this invisible gas could seal our fate on climate change
(CNN)Slashing carbon dioxide emissions is critical to ending the climate crisis. But, for the first time, the UN climate change report emphasized the need to control a more insidious culprit: methane, an invisible, odorless gas with more than 80 times more warming power in the near-term than carbon dioxide.
According to the UN Intergovernmental Panel on Climate Change, the concentration of methane in the atmosphere is higher now than any time in at least 800,000 years.
With Earth rapidly approaching the 1.5-degree-Celsius threshold above preindustrial levels, scientists say methane emissions need to be reduced fast. Charles Koven, a lead author of the IPCC report, said this is due to methane's incredible warming power. www.google.com/...
White House outlines grim COVID-19 trends as delta surge worsens
The White House COVID-19 response team on Thursday outlined grim coronavirus trends showing how the delta variant has strengthened its grip on the country, especially among unvaccinated populations. www.google.com/...
More U.S. states broil in latest heat wave as climate change continues its impact
More than 25 million Americans are expected to endure temperatures topping 100 degrees this week as yet another heat wave descends on the country, adding more risks from wildfires already burning across the West.
Temperatures are forecast between 10 and 15 degrees Fahrenheit above average in 19 states, with the potential for new records to be set in several locations. Heat advisories or alerts have been issued in 34 states, affecting more than 150 million people, and high humidity will also help push heat index values over the next several days to between 105 and 115 degrees in cities like Chicago, St. Louis, Nashville and Houston, NBC News reported.
How Much Worse Will Thawing Arctic Permafrost Make Climate Change?
Global warming is setting free carbon from life buried long ago in the Arctic’s frozen soils, but its impact on the climate crisis is unclear .scientificamerican.com/...
Climate change will transform cooling effects of volcanic eruptions, study suggests
The researchers, from the University of Cambridge and the UK Met Office, say that large-magnitude eruptions will have greater effects as the climate continues to warm. However, the cooling effects of small- and medium-sized eruptions could shrink by as much as 75%
Millions of U.S. homes at risk of climate-related disasters, but few Americans know it
(Well ok then.Bring it on....)
Ok, dammit, we've nuked the old poll answers somehow by trying to update it…sorry